Question

Which of the following correctly states the functions of the rough endoplasmic reticulum? a. lipid metabolism, cholesterol synthesis, and synthesis of the lipid components of lipoproteins b. synthesis of cellular membrane components c. absorption, synthesis, and transport of fats d. storage of calcium ions

Answer 1

Answer:

b. synthesis of cellular membrane components

Explanation:

Endoplasmic reticulum is a network of membranes fistulas; within the cytoplasm of a eukaryotic cells, where proteins and lipids are synthesized usually connected in continuum with the nuclear membrane of the cell.

The ER is of two kinds the smooth and the rough ER (Endoplasmic reticulum).

Functions of Rough endoplasmic reticulum includes; * Synthesis of protein * Degradation of worn out organelles

While the functions of Smooth endoplasmic reticulum includes; * Synthesis of lipid and steroids * Role cellular metabolism * Storage and metabolism of calcium * Catabolism of toxic substance.

Inference from the functions stated above shows that ER is actively involved in the synthesis of cellular membrane components.

Answer 2

Answer:

Components of cell memebrane

Explanation:

The Rough ER so called because of the presence of ribosomes attached to its walls.is  an organelle with mutifunctions, Athough it is known for modification and transport of protein synthesize by the ribosomes: It function in production of cell membrane components

1.Involved the  formation of integral proteins in  the cell membrane; which  facilitated movement of ions and large polar substances across  the cell membrane. integral proteins are most alpha proteins with uncharged polarity to  interact with the hydrophobic phospholipid bilayer,

and

2. It serves as  production site  for  lipid  needed in  other  cell membranes.